#Japan #Tokyo #EcoKaku #WATT-TUNE #GoodWe Japan

Introduction

In an exciting development for Japan's energy sector, four companies—Eco Kaku, WATT-TUNE, GoodWe Japan, and REVIX JAPAN—are joining forces to roll out a low-voltage energy storage system designed to support the power adjustment market by 2026. This collaboration aims to make energy management more efficient while contributing to the growth of renewable energy in the country.

Project Overview

The initiative focuses on the deployment of 49.9 kW class low-voltage storage systems that can be installed on smaller plots of land, offering flexibility in energy resource management. WATT-TUNE will aggregate these systems, ensuring they contribute over 1,000 kW of resources for effective use in the market. The official unveiling of this project will occur during the SMART GRID EXPO 2026, taking place at Tokyo Big Sight from March 17 to 19.

Background

Japan is experiencing significant shifts in its energy landscape, characterized by an increase in renewable energy adoption and changes to the power supply-demand structure. As new data centers and semiconductor plants emerge, the demand for electricity is also on the rise. This increasing need for stability in power systems makes energy storage solutions essential. Low-voltage storage systems are particularly advantageous as they can be easily integrated into smaller areas, providing a decentralized approach to energy resources.

Importance of Collaboration

The synergy between these four companies addresses the challenges associated with implementing low-voltage systems in the market. Through their combined expertise, they aim to develop a streamlined model that facilitates the introduction and utilization of these storage systems. This initiative not only enhances local energy infrastructure but also maximizes the utility of typically underutilized small land parcels.

Key Features of the Initiative

1. Land Utilization Model: The proposed model allows landowners to benefit without bearing the costs of equipment or operational burdens. Revenue from fixed rents, estimated at 40,000 yen monthly (480,000 yen annually), will be sourced from operational gains in the electricity market over a 20-year timeline.

2. Low-Voltage Battery Business Model: The project utilizes an integrated battery system, the "GW50K-ET-JP-G10", combining AC 49.9 kW and DC 100 kWh capabilities. Initial investment estimates for each project stand around 17 million yen (excluding tax), with projected internal rates of return (IRR) of 18.46% for landowners operating the business and 15.81% if the land is leased to operators.

Roles of the Collaborating Companies

• - Eco Kaku: Responsible for installation and on-site implementation.
• - GoodWe Japan: Supplies the equipment as a leading manufacturer in low-voltage storage systems.
• - WATT-TUNE: Acts as the aggregator, coordinating resources for effective market adaptation.
• - REVIX JAPAN: Responsible for sourcing equipment and designing business schemes, while also managing a specialized information website for battery technology.

WATT-TUNE's Vision

Commenting on the initiative, WATT-TUNE emphasized the dual importance of starting small and ensuring market adaptability for low-voltage energy storage systems. The plan includes the distributed installation of 49.9 kW units, aiming to stabilize the power grid while creating value in land utilization. The collaboration ensures comprehensive functionality from equipment to planning, aggregation, and installation, which is crucial for establishing a robust decentralized energy infrastructure in Japan.

Project Launch and Consultation

Beginning March 17, 2026, the project will accept consultations regarding the implementation of these low-voltage energy storage solutions. Target areas include regions serviced by Tokyo Electric Power Company, Chubu Electric Power Company, Kansai Electric Power Company, and Kyushu Electric Power Company.

Exhibition Details

During the SMART GRID EXPO, attendees can expect:

• - An overview of the low-voltage energy storage project
• - Insights into land utilization models
• - Strategies for aggregating distributed resources
• - Opportunities for individual consultations

Conclusion

This collaboration marks a significant step towards modernizing Japan's energy infrastructure through innovative low-voltage solutions. By leveraging the strengths of four specialized companies, the initiative has the potential to transform energy management practices across the nation.

For more information, visit BESS NEWS.

For inquiries, please contact:
WATT-TUNE Corporation
Smart Grid Exhibitor Contact
Email: [email protected]